Implicit Marginal Tax Rates and the Working Poor

These two charts show the effective tax rates at various income levels. The tax rate is quite low for those near point B, which is the earned income tax credit payments. However, after making more than $20,000, the implicit marginal tax rate goes over 100% because a number of benefits expire at that income threshold. Around $50,000, the tax rate goes down again, but rises again when a family no longer qualifies for the child tax credit. Click through to see data source details and technical notes.